[jira] [Assigned] (HDFS-2830) HA: Improvements for SBN web UI

["Brandon Li (Assigned) (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/HDFS-2830?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Brandon Li reassigned HDFS-2830:
--------------------------------

    Assignee:     (was: Brandon Li)

The first item will be fixed by HDFS-2901.
                
> HA: Improvements for SBN web UI
> -------------------------------
>
>                 Key: HDFS-2830
>                 URL: https://issues.apache.org/jira/browse/HDFS-2830
>             Project: Hadoop HDFS
>          Issue Type: Sub-task
>          Components: ha, name-node
>    Affects Versions: HA branch (HDFS-1623)
>            Reporter: Todd Lipcon
>
> A few improvements should be done to the NN web UI while it is in standby mode:
> - Since the SBN doesn't compute replication queues, we shouldn't show under-replicated/missing blocks or corrupt files
> - In an edits dir that is open for read only, we should probably mark it as such
> - We should include the latest txid reflected in the namespace, as well as expose some of the HA-related metrics (eg queued block reports)
> - We should include a link to the other NNs in the cluster, as well as the NN's nameservice ID and namenode ID when available.

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